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drm/amd/display: use correct phantom pipe when populating subvp pipe info

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[why]
In current code, we recognize a pipe as a phantom pipe if it references
the same phantom stream. However it can also a phantom split pipe.
If the phantom split pipe has a smaller pipe index than the phantom pipe
we will mistakenly use the phantom split pipe as the phantom pipe. This
causes an incorrect subvp configuration where the first half of the
screen is flashing solid white image.

[how]
Add additional check that the pipe needs to be an OTG master pipe.

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenjing Liu 2024-01-18 15:30:01 -05:00 committed by Alex Deucher
parent 607e1b0cf4
commit c50c9c872e
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
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@ -787,7 +787,8 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc,
for (j = 0; j < dc->res_pool->pipe_count; j++) {
struct pipe_ctx *phantom_pipe = &context->res_ctx.pipe_ctx[j];
if (phantom_pipe->stream == dc_state_get_paired_subvp_stream(context, subvp_pipe->stream)) {
if (resource_is_pipe_type(phantom_pipe, OTG_MASTER) &&
phantom_pipe->stream == dc_state_get_paired_subvp_stream(context, subvp_pipe->stream)) {
pipe_data->pipe_config.subvp_data.phantom_pipe_index = phantom_pipe->stream_res.tg->inst;
if (phantom_pipe->bottom_pipe) {
pipe_data->pipe_config.subvp_data.phantom_split_pipe_index = phantom_pipe->bottom_pipe->plane_res.hubp->inst;